page-crunch: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/page-crunch - from package: page-crunch

You may install the required package with command apt-get install {package}

Error in other languages:
page-crunch: bevel nie gevind nie
page-crunch: comandă negăsită
page-crunch: comando não encontrado
page-crunch: commande introuvable
page-crunch: command not found
page-crunch: käsku ei ole
page-crunch: không tìm thấy lệnh
page-crunch: komanda nerasta
page-crunch: Kommando nicht gefunden.
page-crunch: kommandot finns inte
page-crunch: komut yok
page-crunch: nie znaleziono polecenia
page-crunch: níor aimsíodh an t-ordú
page-crunch: no se encontró la orden
page-crunch: no s'ha trobat l'ordre
page-crunch: opdracht niet gevonden
page-crunch: parancs nem található
page-crunch: perintah tidak ditemukan
page-crunch: príkaz nenájdený
page-crunch: příkaz nenalezen
page-crunch: команда не найдена
page-crunch: командата не е открита
page-crunch: 命令找不到
page-crunch: コマンドが見つかりません